linux-kernel - Re: [PATCH 1/2] ARM: OMAP2+: move mailbox.h out of plat-omap headers

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Message-ID: <20121031182401.GM12739@atomide.com>
Date:	Wed, 31 Oct 2012 11:24:01 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Loic PALLARDY <loic.pallardy@...com>
Cc:	Omar Ramirez Luna <omar.luna@...aro.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ohad Ben-Cohen <ohad@...ery.com>,
	"devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>,
	Juan Gutierrez <jgutierrez@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Felipe Contreras <felipe.contreras@...ia.com>,
	Suman Anna <s-anna@...com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH 1/2] ARM: OMAP2+: move mailbox.h out of plat-omap
 headers

* Loic PALLARDY <loic.pallardy@...com> [121031 01:48]:
> 
> Hi Omar,
> 
> On 10/31/2012 08:22 AM, Omar Ramirez Luna wrote:
> >
> > As part of plat-omap code cleanup, I was planning to move omap-mailbox
> > framework to a newly drivers/mailbox folder, right now this code is
> > specific to OMAP platforms, but with some clean up it could be the
> > base for a generic framework. And living under drivers/mailbox could
> > give it some exposure for interested developers to give feedback and
> > propose changes.
> >
> > In the past there was a mailbox-like driver in mach-ux500, I was
> > hoping both could live under the same folder, however the platform
> > using it, was dropped a couple of kernel releases back and with it the
> > other similar mailbox implementation.
> 
> On STE side, we are working on a mailbox driver which will rely on 
> mailbox framework.
> However some modifications in current Omap mailbox framework are needed 
> to fit STE HW specificities.
> - API naming should be generic (replace omap prefix by mailbox)
> - message type should be enhanced
> - fifo mechanism is linked to Omap maibox, not needed in STE case since 
> it relies on cross interrupt + shared memory
> I already have modifications I'll send you to see how we can create a 
> common and generic mailbox framework.

OK cool. How about Omar first posts the fixed minimal patches
to move things to live under drivers so can fix up omap for
ARCH_MULTIPLATFORM?

I can then put just those into an immutable branch that people
can pull in as needed, and you guys can continue from there with
the common mailbox framework (and I can continue work on the
core omap code independently of the mailbox framwork work).

Regards,

Tony
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